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Improve SDL/fullscreen mode when not used in DGA mode, i.e. cases when

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screen needs to be updated too. This needs better boxes characterisation.
This commit is contained in:
gbeauche 2005-05-12 16:55:16 +00:00
parent 9f8b4bcc0d
commit a532ff64c8
1 changed files with 43 additions and 1 deletions
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44
BasiliskII/src/Unix/video_vosf.h
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@ -472,6 +472,7 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
// Setup partial blitter (use 64-pixel wide chunks)
const int n_pixels = 64;
const int n_chunks = VIDEO_MODE_X / n_pixels;
const int n_pixels_left = VIDEO_MODE_X - (n_chunks * n_pixels);
const int src_chunk_size = src_bytes_per_row / n_chunks;
const int dst_chunk_size = dst_bytes_per_row / n_chunks;
const int src_chunk_size_left = src_bytes_per_row - (n_chunks * src_chunk_size);
@ -503,6 +504,14 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
// Update the_host_buffer and copy of the_buffer, one line at a time
int i1 = y1 * src_bytes_per_row;
int i2 = y1 * scr_bytes_per_row;
#ifdef USE_SDL_VIDEO
int bbi = 0;
SDL_Rect bb[3] = {
{ VIDEO_MODE_X, y1, 0, 0 },
{ VIDEO_MODE_X, -1, 0, 0 },
{ VIDEO_MODE_X, -1, 0, 0 }
};
#endif
VIDEO_DRV_LOCK_PIXELS;
for (int j = y1; j <= y2; j++) {
for (int i = 0; i < n_chunks; i++) {
@ -510,7 +519,16 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
memcpy(the_buffer_copy + i1, the_buffer + i1, src_chunk_size);
Screen_blit(the_host_buffer + i2, the_buffer + i1, src_chunk_size);
#ifdef USE_SDL_VIDEO
SDL_UpdateRect(drv->s, i * n_pixels, j, n_pixels, 1);
const int x = i * n_pixels;
if (x < bb[bbi].x) {
if (bb[bbi].w)
bb[bbi].w += bb[bbi].x - x;
else
bb[bbi].w = n_pixels;
bb[bbi].x = x;
}
else if (x >= bb[bbi].x + bb[bbi].w)
bb[bbi].w = x + n_pixels - bb[bbi].x;
#endif
}
i1 += src_chunk_size;
@ -523,9 +541,33 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
}
i1 += src_chunk_size_left;
i2 += dst_chunk_size_left;
#ifdef USE_SDL_VIDEO
const int x = n_chunks * n_pixels;
if (x < bb[bbi].x) {
if (bb[bbi].w)
bb[bbi].w += bb[bbi].x - x;
else
bb[bbi].w = n_pixels_left;
bb[bbi].x = x;
}
else if (x >= bb[bbi].x + bb[bbi].w)
bb[bbi].w = x + n_pixels_left - bb[bbi].x;
#endif
}
i2 += scr_bytes_left;
#ifdef USE_SDL_VIDEO
bb[bbi].h++;
if (bb[bbi].w && (j == y1 || j == y2 - 1 || j == y2)) {
bbi++;
assert(bbi <= 3);
if (j != y2)
bb[bbi].y = j + 1;
}
#endif
}
#ifdef USE_SDL_VIDEO
SDL_UpdateRects(drv->s, bbi, bb);
#endif
VIDEO_DRV_UNLOCK_PIXELS;
}
mainBuffer.dirty = false;